July 28th is the 209th day of the year (210th in leap years) in the Gregorian calendar. There are 156 days remaining until the end of the year. This date is slightly more likely to fall on a Tuesday, Thursday or Saturday (58 in 400 years each) than on Sunday or Monday (57), and slightly less likely to occur on a Wednesday or Friday (56).

Important historical events include in 1995 – Two followers of Rajneesh were convicted for the attempted assassination of the United States Attorney for the District of Oregon.

Other historical incidents occurring on the day are in 1794 – French Revolution: Maximilien Robespierre and Louis Antoine de Saint-Just, architects of the Reign of Terror, were executed after having been arrested the previous day.